In this episode Caroline and Liz examine what the prosecution say happened to Baby M, a twin boy Lucy Letby is accused of attempting to murder by injecting with air.

Jurors have heard how doctors first became suspicious about Lucy Letby 10 months before baby M’s collapse and how a medical log of the drugs he was given during attempts to save his life was later found under Lucy Letby’s bed when police searched her home after her arrest.

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